said by kirkdj :so under this hotspot plan and after looking up the equipment you used.......can I plug an external antenna into the Verizon modem supplied? I read that my ASUS RT-N66U router does except mobile broadband dongles vis the USB ports........is this how the Verizon 4620 hooks up?
Yes, you can plug an external antenna into the Verizon 4620 device.
The 4620 does not have an external connector so you cannot plug it into a router, it is a router itself and is all you need.